Acupuncture for treatment-induced leukopenia | Cam-Cancer

Acupuncture for treatment-induced leukopenia

Abstract and key points
  • Acupuncture usually entails the needling of specific points located on the body surface.
  • The effectiveness of acupuncture for cancer treatment-induced leukopenia is uncertain.
  • Serious complications of acupuncture exist but are probably very rare.

Acupuncture typically entails needling specific points of the body surface. According to Traditional Chinese Medicine (TCM) philosophy, illness is caused by imbalances of energies in the body, while acupuncture is a treatment that re-balances energies. Therefore, it is claimed by TCM-practitioners to be helpful in most human conditions. By contrast, most Western acupuncturists follow the principles of conventional medicine and would employ acupuncture only for specific conditions. Yet both types of practitioners might advocate acupuncture for a wide range of conditions and symptoms. Treatment-induced leukopenia (reduced number of white blood cells) is one condition for which acupuncture treatment has been suggested.

The evidence for the effectiveness of acupuncture for this indication is, however, very limited. Systematic reviews (including 11 trials assessing leukocyte counts) as well as two additional trials are available. Trials are mostly published in Chinese and thus difficult to access; more importantly, they are all of poor methodological quality.

Two reviews of moxibustion, one thereof a Cochrane review (n=25), concluded that although some small trials showed some positive effects they were all at high risk of bias.

Results from one RCT (n=191) of transcutaneous electrical acupuncture stimulation on bone marrow suppression are not consistent showing higher white blood cell counts compared to control at some selected time points but not others.

Mild adverse effects, e.g. pain or bleeding at the site of acupuncture can be expected in about 10% of all cases, and serious complications, such as pneumothorax and hepatitis, seem to be very rare.

Document history

Most recently revised and updated in March 2019 by Karen Pilkington
Revised in July 2015 by Karen Pilkington
Summary first published in April 2013, authored by Edzard Ernst

Citation

Karen Pilkington, Edzard Ernst, CAM-Cancer Consortium. Acupuncture for treatment-induced leukopenia [online document], http://cam-cancer.org/en/acupuncture-treatment-induced-leukopenia. March, 2019.

What is it?

Scientific name/Description

Acupuncture refers to the insertion of fine needles at specific points (acupuncture points or acupoints) on the body for the prevention or treatment of disease or the maintenance of health. The term ‘acupuncture’ is derived from Latin and means ‘piercing with a sharp instrument’, from Latinacus,‘needle’ (noun), and pungere,‘to prick or puncture’ (verb).

Ingredients/Components

Acupuncture is usually performed with fine, solid needles but many variations exist. ‘Acupoints’ might, for instance, be stimulated by electrical currents with or without needles (electro-acupuncture), by pressure (acupressure involving use of ‘press’ needles, studs or manual pressure), by heat (moxibustion) or laser light (laser-acupuncture). Techniques that do not involve the insertion of needles are not always classed as acupuncture.

Acupuncture is often part of a complex intervention that includes use of herbal mixtures, moxibustion (burning of herbs), and dietary and lifestyle advice.

Application and dosage

Acupuncture is applied to the body surface including the ears and scalp. The dosage (number of points stimulated, depth of needle insertion, duration of stimulation and frequency and duration of treatment sessions) depends on the condition treated. Sometimes only one acupoint is stimulated; more commonly several needles are applied. A specific area of the body (for example, ear-acupuncture) may be treated but, more commonly, several areas are needled. Needles are usually removed after a 30 minute treatment session, but press needles and studs may be left for several days or, in some cases, weeks. Needles may be stimulated by manual manipulation or left unstimulated. Treatments may be repeated at regular intervals, for example once or twice weekly, or treatment can comprise of a single session.

The placement of needles is determined by the condition being treated and, to some extent, by the type of acupuncture being applied. In traditional Chinese or East Asian forms of acupuncture, acupoints are considered to be located along channels or ‘meridians’ through which a vital force or energy (‘Qi’) flows1. Diagnosis is carried out using a number of methods including peripheral pulses, the appearance of the tongue, speech, history and overall impressions of the patient. The ‘symptom pattern’ and underlying ‘imbalances’ guide selection of points. In ‘Western medical’ acupuncture, points are selected according to contemporary neurophysiology and are considered to be sites where external stimuli result in a greater sensory stimulus,  so-called ‘trigger points‘2,3.

History/providers

The history of acupuncture can be traced to ancient China and its Taoist philosophy4. It has been practised in China for more than 2000 years and in other East Asian countries including Japan, Korea and Vietnam, for between 1000 to 2000 years arriving in Europe several hundred years ago5. In traditional Chinese medicine (TCM), the life energy ‘Qi’ flowing through the body in meridians and the balance of ‘yin’ and ‘yang’ are thought to determine human health. Illness is seen as an imbalance of these energies and acupuncture is perceived to be one method for re-balancing the imbalance. Traditionally, acupuncture was not used primarily for specific problems such as pain control but to treat a wide range of symptoms or problems based on the pattern of diagnosis5. Yet, in recent years, pain-control seems to have become its main purpose in many clinical settings.

Acupuncture became particularly popular outside Asia after the US president Richard Nixon visited China in 19714. Acupuncture treatments were originally provided by traditional acupuncturists but as interest in the technique extended, health professionals adopted and adapted the techniques, using acupuncture alongside conventional treatment.

Claims of efficacy

In TCM, acupuncture is considered to be a therapy for most human illnesses. In Western medical acupuncture, the main focus of claims of efficacy is on treatment of musculoskeletal pain and nausea and vomiting3.

Mechanisms of action

Considerable research effort has been focused on finding physiological or histological evidence of the existence of concepts postulated within TCM acupuncture such as Qi, meridians and specific acupuncture points but conclusive proof has not been obtained6. Neurophysiological theories to explain acupuncture’s modes of action in pain have been developed, e.g. gate-control mechanism, and effects on neurotransmitters like endorphins7.

Alleged indications

According to TCM concepts, acupuncture is a therapy for most symptoms and diseases. Modern concepts are centred around the management of pain and conditions likely to be influenced through effects on neurotransmitters7.

Prevalence of use

In many countries, acupuncture is now one of the most popular forms of CAM. Most modern pain clinics and many oncology centres across the world routinely offer acupuncture as one of several therapeutic options. Exact prevalence figures vary from country to country and from setting to setting. A survey of cancer patients in Europe reported use of acupuncture by between 2 to 4% of patients before and after diagnosis but use varied by cancer type and acupuncture was used by up to 17% of gynaecological cancer patients8,9Acupuncture was the therapy most frequently provided by integrative oncology centres across Europe, being provided by 55% of 47 centres21.

Legal issues

In most countries, acupuncture can be administered by both medically-trained and statutorily regulated health professionals (e.g. doctors, physiotherapists, nurses, midwives) and by non-medically-trained acupuncturists. The regulation of acupuncture varies from one country to another. In the UK, there is voluntary rather than statutory regulation and local authorities can regulate hygiene of acupuncture practice1.

Cost and expenditures

In the UK, average costs are £40-£70 for the first session, with ordinary appointments of between 30-60 minutes between £25-£501. One series of treatments would normally comprise 5-20 sessions. In Germany, costs of acupuncture for some conditions are covered by public health insurers.Please see CAM Regulation for coverage of cost by public health insurers across Europe.  

Does it work?

The notion that acupuncture might normalise pathologically low leukocyte counts in cancer patients emerged from several Chinese case series (e.g10,11) and poorly-controlled studies (e.g12). Subsequently, several controlled clinical trials were published and summarised in one systematic review13.

  • The evidence for the effectiveness of acupuncture for this indication is, however, very limited. Systematic reviews (including 11 trials assessing leukocyte counts) as well as two additional trials are available. Trials are mostly published in Chinese and thus difficult to access; more importantly, they are all of poor methodological quality.
  • Two reviews of moxibustion, one thereof a Cochrane review (n=25), concluded that although some small trials showed some positive effects they were all at high risk of bias.
  • Results from one RCT (n=191) of transcutaneous electrical acupuncture stimulation on bone marrow suppression are not consistent showing higher white blood cell counts compared to control at some selected time points but not others.

Acupuncture

An overview of systematic reviews of acupuncture for palliative care in cancer included two systematic reviews22. The first review included 11 controlled clinical trials published up to 2004, in which patients were randomised to receive either acupuncture or usual care only13. All the studies were from China and were published in non-Medline listed Chinese journals. Their quality was rated by the review authors to be poor. Patients were treated once a day for 21 days on average. Only 7 trials published leukocyte counts; a meta-analysis across these studies showed a significant increase of leukocyte counts of 1,221 WBC/microliter (WMD 1.22; 95%CI 0.64 to 1.81) in the acupuncture compared to the control groups. The authors of the review concluded that the poor quality of the primary studies and publication bias might have generated a false positive overall impression.

The second review included two trials in breast cancer patients published up to 200823. Only one study was controlled but both trials involved injection of a drug at acupuncture points, thus confounding any effects of needling. The methodological quality of both studies was rated as poor.

Since the publication of these reviews, two trials have been published in journals indexed in English language databases.

A randomised pilot RCT compared acupuncture with sham-acupuncture in 21 patients with chemotherapy-induced leukopenia14. The authors reported clinically relevant trends towards normalisation of the leukopenia; however, due to the fact that this was merely a small pilot, no conclusions regarding effectiveness can be drawn from this study.

A Chinese team randomised 86 patients with chemotherapy-induced leukopenia into receiving granulocyte colony-stimulating factor with or without acupuncture15. After 10, 17 and 24 days, the leukocyte counts were higher in the group receiving acupuncture. Apparently, there were no inter-group differences at the end of the follow-up period at 45 days. The study was published in Chinese, and only an English abstract is available which omits important details; interpretation of its results is therefore problematic.

Moxibustion

Moxibustion (burning of a herb above acupuncture points) which is often considered part of acupuncture therapy has also been assessed. A 2018 Cochrane review of 25 heterogeneous RCTs report small single studies showing various beneficial effects of moxibustion including increasing blood cell counts24. Poor reporting and high risk of bias affected confidence in this evidence. Similar results were reported in a previous systematic review which included 6 RCTs with a total of 681 patients25. All the studies had a high risk of bias and evidence was judged to be low level on the superiority of moxibustion over drug therapies in the treatment of chemotherapy-induced leukopenia.

Transcutaneous electrical acupuncture stimulation (TEAS)

A Chinese team carried out a 3-arm randomised controlled trial to assess the effects of transcutaneous electrical acupoint stimulation (TEAS) on bone marrow suppression26. A total of 191 chemotherapy naive non-small cell lung cancer patients participated. They were allocated to routine nursing care (control group), oral administration of prophylactic agents (medication group) or TEAS at set acupoints. White blood cell counts were significantly higher in the TEAS group compared with the control group on days 8 and 14. While the authors suggested this was a positive result, no such significant results were seen at other time points (days 11, 21, 28).

Is it safe?

Adverse events

In about 8-10% of all patients, acupuncture causes mild, transient adverse effects such as pain, haematoma or bleeding at the site of needling16,17Most commonly reported problems are local pain (3.3%), bruising (3.2%), minor bleeding (1.4%), and orthostatic problems (0.5%)27. In addition, in rare cases complications due to tissue trauma, pneumothorax, cardiac tamponade or infection are on record18. Risk of cross-infection of blood borne disease, particularly hepatitis B, is minimised by the use of sterile disposable needles, and immunisation of acupuncturists. Rare cases of fatalities after acupuncture treatment have been reported although causality was not confirmed in many of these reports19.

Contraindications

Professional bodies for acupuncture vary somewhat in defining contraindications, particularly in relation to pregnancy1,20. Bleeding abnormalities and anticoagulant treatment, oedema, epilepsy, pregnancy and needle phobia are among those conditions that have been suggested as relative, or in some cases absolute, contra-indications. Some points are considered ‘forbidden’ or not to be used for acupuncture needling.

Interactions

None known, except for electro-acupuncture where the electrical current might interfere with pacemakers and is used with caution in epilepsy20.

Warnings

Strict asepsis and use of sterile disposable needles are mandatory to avoid infections. Some patients faint during acupuncture and should thus be treated lying down.

Recommendations from the US National Cancer Institute's Conference on Acupuncture for Symptom Management in Oncology in 2017 indicate that “oncology acupuncture” is a specialty area of practice28. Specific concerns include higher risks of infection and bleeding due to neutropenia and thrombocytopenia and possibility for hemodynamic instability due to dehydration and malnutrition. It was proposed that clinical practice guidelines are followed that take into account lab values such as absolute neutrophil and platelet counts.

References
  1. British Acupuncture Council. Ten Top Things to Know. [online] Accessed 3rd April 2019.
  2. Filshie, J., Cummings, M. Western medical acupuncture. In: Ernst, E., White, A.  (Eds). Acupuncture: A Scientific Appraisal. 1999. Butterworth-Heinemann, Oxford. pp 31-59.
  3. White A; Editorial Board of Acupuncture in Medicine. Western medical acupuncture: a definition. Acupunct Med. 2009 27(1):33-5.
  4. White A, Ernst E. Introduction. In: Ernst, E., White, A. (Eds). Acupuncture: A Scientific Appraisal. 1999. Butterworth-Heinemann, Oxford. pp1-10.
  5. Birch S, Kaptchuk T. History, nature and current practice of acupuncture: an East Asian perspective. In: Ernst, E., White, A.  (Eds). Acupuncture: A Scientific Appraisal. 1999. Butterworth-Heinemann, Oxford. pp 11-30.
  6. Ahn AC, Colbert AP, Anderson BJ, Martinsen OG, Hammerschlag R, Cina S, Wayne PM, Langevin HM. Electrical properties of acupuncture points and meridians: a systematic review. Bioelectromagnetics. 2008 29(4):245-56.
  7. Zhao ZQ. Neural mechanism underlying acupuncture analgesia. Prog Neurobiol 2008; 84(4):355-375.
  8. Molassiotis A, Browall M, Milovics L, Panteli V, Patiraki E, Fernandez-Ortega P. Complementary and alternative medicine use in patients with gynecological cancers in Europe. Int J Gynecol Cancer. 2006 16 Suppl 1:219-24.
  9. Molassiotis A, Fernadez-Ortega P, Pud D, Ozden G, Scott JA, Panteli V, Margulies A, Browall M, Magri M, Selvekerova S, Madsen E, Milovics L, Bruyns I, Gudmundsdottir G, Hummerston S, Ahmad AM, Platin N, Kearney N, Patiraki E. Use of complementary and alternative medicine in cancer patients: a European survey. Ann Oncol. 2005 16(4):655-63.
  10. Wei Z. Clinical observation on therapeutic effect of acupuncture at zusanli for leukopenia. J Tradit Chin Med 1998; 18: 94-5.
  11. Huang X, Chen H, Guo X et al. Treatment with cone moxibustion of chemotherapeutic leukocytopenia in 114 cases. J Tradit Chin Med 1993; 13: 266-7.
  12. Chen HL, Huang XM. Treatment of chemotherapy-induced leukocytopenia with acupuncture and moxibustion. [in Chinese]. Zhong Xi Yi Jie He Za Zhi 1991; 11: 350-2.
  13. Lu W, Hu D, Dean-Clower E et al. Acupuncture for chemotherapy-induced leukopenia: exploratory meta-analysis of randomized controlled trials. J Soc Integr Oncol 2007; 5: 1-10.
  14. Lu W, Matulonis UA, Doherty-Gilman A et al. Acupuncture for chemotherapy-induced neutropenia in patients with gynecologic malignancies: a pilot randomized, sham-controlled clinical trial. J Altern Complement Med 2009; 15: 745-53.
  15. Han YF, Gong Z, Huang LQ et al. Clinical study on acupuncture for leukopenia induced by chemotherapy. [in Chinese]. Zhongguo Zhen Jiu 2010; 30: 802-5.
  16. White A, Hayhoe S, Ernst E. Survey of Adverse Events Following Acupuncture. Acupunct Med 1997; 15:67-70.
  17. Witt CM, Pach D, Brinkhaus B, Wruck K, Tag B, Mank S, Willich SN. Safety of acupuncture: results of a prospective observational study with 229,230 patients and introduction of a medical information and consent form. Forsch Komplementmed. 2009;16:91-7.
  18. White A. A cumulative review of the range and incidence of significant adverse events associated with acupuncture. Acupunct Med. 2004; 22:122-123.
  19. Ernst E. Deaths after acupuncture: a systematic review. Int J Risk Safety 2010; 22(3):131-136.
  20. British Medical Acupuncture Society (BMAS). Code of Practice & Complaints Procedure. Version 10, August 2018 [online]. Accessed 3rd April 2019.
  21. Rossi E, Vita A, Baccetti S, Di Stefano M, Voller F, Zanobini A. Complementary and alternative medicine for cancer patients: results of the EPAAC survey on integrative oncology centres in Europe. Support Care Cancer. 2015 23(6):1795-806.
  22. Wu X, Chung VC, Hui EP, Ziea ET, Ng BF, Ho RS, et al. Effectiveness of acupuncture and related therapies for palliative care of cancer: overview of systematic reviews. Scientific reports. 2015;5:16776.
  23. Chao, L. F. et al. The efficacy of acupoint stimulation for the management of therapy-related adverse events in patients with breast cancer: a systematic review. Breast Cancer Res Treat 2009;118:255–267.
  24. Zhang HW, Lin ZX, Cheung F, Cho WC, Tang JL. Moxibustion for alleviating side effects of chemotherapy or radiotherapy in people with cancer. The Cochrane Database of Systematic Reviews. 2018;11:CD010559.
  25. Choi TY, Lee MS, Ernst E. Moxibustion for the treatment of chemotherapy-induced leukopenia: a systematic review of randomized clinical trials. Support Care Cancer 2015;23:1819-26.
  26. Hou L, Gu F, Gao G, Zhou C. Transcutaneous electrical acupoint stimulation (TEAS) ameliorates chemotherapy-induced bone marrow suppression in lung cancer patients. Journal of Thoracic Disease. 2017;9:809-17.
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  28. Zia FZ, Olaku O, Bao T et al. The National Cancer Institute's Conference on Acupuncture for Symptom Management in Oncology: State of the Science, Evidence, and Research Gaps. J Natl Cancer Inst Monogr 2017;(52).

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